<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			/*a{
				color:red;
			}
			span{
				color:red;
			}
			p{
				color:red;
			}
			.div111{
				color:red;
			}*/
			
			
			/*通过群组选择器,简写相同样式的代码*/
			a,span,p,.div111{
				color:red;
			}
		</style>
	</head>
	<body>
		<a href="">我是a标签</a><br />
		<span>我是span标签</span><br />
		<p>我是p标签</p> <br />
		<div class="div111">我是div标签</div>
		<div>我是div</div>
	</body>
</html>
